460

A certain sum amounts to INR 9799 in 3 years and to INR 12464 in 8 years at a certain rate percent per

annum, at simple interest. What will be the amount (in rupees) of the same sum in 5 years at double the earlier

rate, at simple interest?

O 12960

13530

0 13500

012840

153110

A certain sum amounts to INR 9799 in 3 years and to INR 12464 in 8 years at a certain rate percent per

annum, at simple interest. What will be the amount (in rupees) of the same sum in 5 years at double the earlier

rate, at simple interest?

O 12960

13530

0 13500

012840

153110

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## Answers & Comments

## SOLUTION :

GIVENA certain sum amounts to INR 9799 in 3 years and to INR 12464 in 8 years at a certain rate percent perannum, at simple interest.TOCHOOSETHE CORRECTOPTIONTheamount (in rupees) of the same sum in 5 years at double the earlierrate, at simple interest12960135301350012840EVALUATIONLetthePrincipal=PSincetheproblemisofsimpleinterestSointerestofacertainprincipalamountwithsamerateofinterestperyearwillbesameLetInterestperyear=INowbythefirstconditionAgainbythesecondconditionEquation(2)-Equation(1)givesFromEquation(1)NowiftherateofinterestdoubledthenamountofinterestperyearwillbedoubledSotheamountof the same sum(=8200)in 5 years at double the earlierrate, at simple interestFINALRESULTThe amountof the same sum in 5 years at double the earlier rate, at simple interest=━━━━━━━━━━━━━━━━LEARN MORE FROM BRAINLYThe value of0.854 (bar on 54)+0.23 (23 bar)-0.68 (bar 8)brainly.in/question/13429183## Verified answer

Answer:

Ans is 13530

Step-by-step explanation:

X inr in 3years -9799

X inr in 8 years 12646

So,

X inr in 5years

12646-9799=2665

1 year interest- 2665/5=533

=>X+3*533=9799

Or,x = 9799-1599

Or,. = 8200

Now if interest becomes double (*2)

Then

After 5 year the amount will be

8200+((533*2)*5)

= 8200+5330

= 13530